1. Laboratory for Fundamental BioPhotonics, Institutes of Bioengineering and Materials, School of Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
2. Soft Materials Laboratory, Institute of Materials, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland